Arthur moore



(No Model.) 2 Sheets-Sheet 1. A. MOORE.

GRAIN SUOURER' AND CLEANER.

Patented Dec. 23, 1890.

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J 1 Wc'fizesses 6 d lnrzcfior U MM (No Model.)

2 Sheets-Sheet 2. A. MOORE.

GRAIN SGOURER AND CLEANER. No. 443,372.

Patented Dec. 23, 1890.

,I ,I F I I I I I I I I I I I I I I I I I I I I I I I I il imesses I I IUNITED STATES PATENT OFFICE.

ARTHUR MOORE, OF TORONTO, CANADA.

GRAIN SCOURER AND CLEANER.

SPECIFICATION forming part of Letters Patent No. 443,372, dated December23, 1890.

Application filed February 20, 1890. Renewed October 30, 1890, SerialNo. 369,790. (No model.)

To all whom it may concern..-

Be it known that I, ARTHUR MOORE, merchant miller, of the city ofToronto, in the county of York, in the Province of Ontario, Canada, haveinvented certain new and useful Improvements in Grain Scourers andCleaners, of which the following is a specification.

My invention relates to certain improvements made by me upon a grainscourer and cleaner patented to me by the Dominion of Canada on the 16thday of July, 1889, under N 0. 31,718, and by the United States ofAmerica on the 16th day of July, 1889, under No. 406,931, the object ofthe improvements being to insure a more thorough cleansing of the wheatby a more perfect arrangement of the air legs and chambers, by which thecirculation of the air is improved and is caused to act more thoroughlyupon the grain in passing through the machine.

Figure 1 is a perspective sectional view of the machine, showing theinlet and outlet grain-spouts with the air-legs acting upon them. Fig. 2is a similar View of the machine made at right angles to the View shownin Fig. 1, the perforated cylinder being removed.

In the drawings, A represents a perforated cylinder placed within anair-chamber B. The top of the cylinder A is closed by a cover 0. Aconveyer D is fixed to a small perforated pipe or tube E, connected tothe shaft E, on the top of which the fan F is secured. The chamber Bcommunicates with the interior of the casing of the fan F, which is madeto act as an exhaust-fan to draw the air from the said chamber B anddischarge it into the blast-chamber Gr. An imperforate cylinder 11 isplaced within the perforated cylinder A and fixed by the arms I to theshaft E, with which it revolves. Around the outer circumference of theimperforate cylinder II, I fiX a series of blades a, shaped tocorrespond with the blades of the conveyor D, in fact constituting aportion of the said conveyor D. The base of the cylinder H rests uponthe perforated bed-plate J, which has a flange 1) formed on it to fitinside the cylinder H to prevent the wheat escaping. The flange bsurrounds a hole made in the bed-plate J, which bedplate is supported alittle above the bottom (1 of the air-chamber. Air-legs K (see Fig. 2)connect the space between the bottom (Z and bed-plate J and theblast-chamber G. The bottom of the cylinder E is left open, so as tocommunicate with the interior of the cylinder H.

When the fan F is put in operation, it exhausts the air in the chamberB, discharging it in the blast-chamber G, and as this latter chamber isconnected to the bottom of the chamber B by the air-legs K a constantupward circulation is produced in the chamber B. The upward currentproduced in the said chamber acts through the perforations in thecylinder A, carrying through the said perforations dust and wheatscouring-s produced by the action of the machine. The screeningschamberL being connected to the air-chamber B by the opening M, an upwardcurrent is produced in the screenings-chamber L, similar to the currentin the chamber B. An air-leg N, provided with a regulating-valve n,communicates, as shown, with the blast-chamber G and with the bottom ofthe grain-leg O, which grain-leg is connected, as shown, with thescreenings-chamber L. Consequently the air which is forced down throughthe air-leg N into the bottom of the grain-leg 0 passes up the saidgrain-leg into the screenings-chamber L, from which it finds its wayback into the chamber B, as before described. In this way a constantupward current is maintained in the grain-leg-O and upper part ofscreenings-chamber L, as well as in the air-chamber B. The grain whichenters the machine through the grain-spout P falls upon the valve Q,spreading over the face of the said valve, which is set to permit a thinstream of the grain to fall upon the slanting shelf R, which scattersthe grain as it falls to the bottom of the grain-leg O, which conveysit, as indicated, into the bottom of the perforated cylinder A. Theupward current of air already described in the grain-leg O carries thedust and other light particles of foreign matter to the top of thegrain-leg 0, where it comes in contact with the deflecting-plate S,which projects into the screenings-chamber Lbelow the bottom of theopening, so as to cause a slight downward draft at this point in thechamber L, directing the screenings toward the bottom of the saidchamber, from which it is withdrawn through the spout T, the dustpassing on upward to the fan F. The grain which IOC the same thicknessall the way around the ease up to the top of the conveyor, where it isdischarged out of the spout U. A valve Y is placed in the end of thespout U at the point where it opens into the chamber \V, so as toregulate the discharge of the grain from the spout U on the shelf Y,which scatters the grain as it falls into the said chamber \V,

which has an opening at its bottom provided with a regulating-valve X.An air-passageway Y connects at one end with the 'blastchamber G and atits other end with the chamber W, so that a current of air is forceddown through the passage-wayY into the said chamber \V. Ascreeningscha1nber Z is connected to the chamber \V by an openinglocated at or near the top of the said chamber \V.

up the said chamber back into the chamber B through the opening Z. Owingto this arrangement of air-passages the grain falling from the valve Vis acted upon by the current of air passing up the chamber \V. The saidcurrent of air carrying any dust or light forcign matter from the grain,conveys it into the screenings-chamber Z, on entering which it comes incontact with the defiectingplate X, which precipitates the screeningstoward the bottom of the chamber Z, from which it is re moved throughthe opening made in the bottom ofthe said chamber, the dust passingupward to the fan F through the opening Z. The deflecting- Hate X, beingcarried down the chamber Z below the opening in the said chamber to thechamber \V, causes the downward current of air at this point,precipitating the screenings, as before mentioned.

Owing to the thin layer of grain in motion against the wall of theperforated cylinder A, the current of air will pass freely through it,carrying away every particle of dust which may have been released fromthe grain, leaving little or no work to be done by the current of airmaintained in the dischargingchamber \V. A valve 1'' is placed in theairpassage Y, so that the strength of the blast in the said air-passagemay be regulated.

A skirt G extends from the base of the fan-casing to a point below theopening of the air-legs or passage-ways leading from the blast-chamber Gto the interior of the machine. This shirt effectually protects theopenings of the said air-legs or passage-ways Consequently the air whichis forced into I the chamber \l' passes into the chamber Z and from thedust which is blown into the blast chamber by the action of the fan. Thesaid dust sinks to the bottom of the blast-chamber, from which it iswithdrawn through openings made in the bottom of the blast-chamber forthat purpose.

I \Vhat I claim as my invention is- 1. In a grain scouring and cleaningmachine, the combination of the perforated cylinder A, having one endclosed, the air-chamber 13, surrounding and communicating with saidcylinder, the shaft E, arranged in the cylinder A, the cylinder II onsaid shaft, the conveyor 1) on shaft E, the fan F on the shaft E, theblast-chamber G, and the air-legs K, connecting or forming communicationbetween the air-chamber B and blast-chamber G.

i. In a grain scouring and cleaning machine, the combination of theperforated cylinder A, the air-chamber I), surrounding the same. theair-legs K, communicating with said air-chamber, the shaft E, revolvingin the cylinder and carrying the conveyer D, the cylinder ll, fitting inthe cylinder A and revolving therein, and the fan E, all adapted tooperate as described.

I In a grain scouring and cleaning machine, the combination of cylinderA, airchamber 13, fan l1, blast-chamber G, air-leg N, grain-leg 0, andscreenings-chamber L, communicatin g with air-chamber B.

4:. In a grain scouring and cleaning ma chine, the combination ofcylinder A, conveycr 1), fan F, air-chamber B, and screenings-chamber L,as described.

5. In a grain securing and cleaning machine, the combination of cylinderA, conveyor I), fan l ,blast-chamber G, air-chamber l3, air-leg N,grain'leg O, and screenings-chamber L, as described.

ti. In a grain scouring and cleaning machine, the combination ofcylinder A, conveyer 1), fan I spout U, chamber \V, airpassage way I,and blast-chamber G, as described.

7. In a grain scouring and'cleaning machine, the combination of cylinderA, convcyer D, fan F, chamber \V, blast chamber G, and chamber Z, asdescribed.

8. In a grain scouring and cleaning machine, the (fiOll'lllilltltlOll ofcylinder A, conveycr D, fan F, blast-chamber (1, air-passage way Y,chamber \V, spout U, valve V, and chamber Z, as described.

Toronto, February 1, 1890.

ART] [UR MOORE.

In presence of CHARLES C. BALDWIN, E. Cnnnnvcs.

